package com.jekun.helloworld.designmode.command.demo01;

/**
 * @author Administrator
 */
public class Television {

    public String open() {
        return "打开电视机！";
    }

    public String close() {
        return "关闭电视机！";
    }

    public String changeChannel() {
        return "切换电视频道！";
    }
}